CVE-2020-1452 : Vulnerability Insights and Analysis

Microsoft SharePoint Remote Code Execution Vulnerability was published on 2020-09-11.

Understanding CVE-2020-1452

A remote code execution vulnerability exists in Microsoft SharePoint, allowing attackers to run arbitrary code.

What is CVE-2020-1452?

Vulnerability in Microsoft SharePoint when source markup of an application package is not properly checked
Attackers can execute code in the context of the SharePoint application pool and server farm account
Exploitation requires uploading a crafted SharePoint application package

The Impact of CVE-2020-1452

Type: Remote Code Execution
Severity: High (CVSS Base Score: 8.6)
Attack Vector: Network
Attack Complexity: Low
Privileges Required: None
User Interaction: None
Scope: Unchanged
Confidentiality, Integrity, Availability Impact: Low, High, Low
Exploitability: Proof of Concept Code
Remediation Level: Official Fix
Report Confidence: Confirmed

Technical Details of CVE-2020-1452

Affects Microsoft SharePoint Enterprise Server 2016, 2013, 2019, SharePoint Foundation 2010, and 2013.

Vulnerability Description

Failure to check source markup of application packages
Allows attackers to execute arbitrary code

Affected Systems and Versions

Microsoft SharePoint Enterprise Server 2016 (Version 16.0.0)
Microsoft SharePoint Enterprise Server 2013 SP1 (Version 15.0.0)
Microsoft SharePoint Server 2019 (Version 16.0.0)
Microsoft SharePoint Foundation 2010 SP2 (Version 13.0.0)
Microsoft SharePoint Foundation 2013 SP1 (Version 15.0.0)
Platforms: x64-based Systems (except SharePoint Foundation 2010, platform unknown)

Exploitation Mechanism

Uploading a specially crafted SharePoint application package

Mitigation and Prevention

Immediate Steps to Take:

Apply the security update provided by Microsoft
Restrict user access to affected systems
Monitor for any suspicious activities Long-Term Security Practices:
Regularly update and patch all software
Conduct security training and awareness programs

Patching and Updates

Microsoft has released a security update to address the vulnerability